content: /*
   * Copyright 2017 David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  
  package hu.akarnokd.reactive4javaflow.impl.operators;
  
  import static org.junit.Assert.*;
  
  import java.io.IOException;
  
  import hu.akarnokd.reactive4javaflow.*;
  import hu.akarnokd.reactive4javaflow.functionals.CheckedPredicate;
  import org.junit.Test;
  
  public class ParallelFilterTest {
  
      @Test
      public void subscriberCount() {
          ParallelFolyamTest.checkSubscriberCount(Folyam.range(1, 5).parallel()
          .filter(v -> true));
      }
  
      @Test
      public void doubleFilter() {
          Folyam.range(1, 10)
          .parallel()
          .filter(v -> v % 2 == 0)
          .filter(v -> v % 3 == 0)
          .sequential()
          .test()
          .assertResult(6);
      }
  
      @Test
      public void doubleError() {
          TestHelper.withErrorTracking(errors -> {
              new ParallelInvalid()
                      .filter(v -> true)
                      .sequential()
                      .test()
                      .assertFailure(IOException.class);
  
              assertFalse(errors.isEmpty());
              for (Throwable ex : errors) {
                  assertTrue(ex.toString(), ex instanceof IOException);
              }
          });
      }
  
      @Test
      public void doubleError2() {
          TestHelper.withErrorTracking(errors -> {
              new ParallelInvalid()
                      .filter(v -> true)
                      .filter(v -> true)
                      .sequential()
                      .test()
                      .assertFailure(IOException.class);
  
              assertFalse(errors.isEmpty());
              for (Throwable ex : errors) {
                  assertTrue(ex.toString(), ex instanceof IOException);
              }
          });
      }
  
      @Test
      public void error() {
          Folyam.error(new IOException())
          .parallel()
          .filter(v -> true)
          .sequential()
          .test()
          .assertFailure(IOException.class);
      }
  
      @Test
      public void predicateThrows() {
          Folyam.just(1)
          .parallel()
          .filter(v -> {
              throw new IOException();
          })
          .filter(v -> true)
          .sequential()
          .test()
          .assertFailure(IOException.class);
      }
  }
  